Re: [PATCH v28 01/11] dt-bindings: arm: mediatek: mmsys: add vdosys1 compatible for MT8195

[Matthias Brugger <matthias.bgg@gmail.com>]

On 22/11/2022 11:51, Nancy Lin (林欣螢) wrote:
> Dear Matthias,
> 
> Thanks for the review.
> 
> On Thu, 2022-11-10 at 14:10 +0100, Matthias Brugger wrote:
>> 
>> On 09/11/2022 06:10, Jason-JH Lin (林睿祥) wrote:
>> > On Tue, 2022-11-08 at 18:46 +0100, Matthias Brugger wrote:
>> > > 
>> > > On 07/11/2022 08:22, Nancy.Lin wrote:
>> > > > Add vdosys1 mmsys compatible for MT8195 platform.
>> > > > 
>> > > > For MT8195, VDOSYS0 and VDOSYS1 are 2 display HW pipelines
>> > > > binding
>> > > > to
>> > > > 2 different power domains, different clock drivers and
>> > > > different
>> > > > mediatek-drm drivers.
>> > > > 
>> > > > Signed-off-by: Nancy.Lin <nancy.lin@mediatek.com>
>> > > > Reviewed-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
>> > > > ---
>> > > >  
>> > > > .../devicetree/bindings/arm/mediatek/mediatek,mmsys.yaml      |
>> > > > 4
>> > > > +++-
>> > > >   1 file changed, 3 insertions(+), 1 deletion(-)
>> > > > 
>> > > > diff --git
>> > > > a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys
>> > > > .yam
>> > > > l
>> > > > b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys
>> > > > .yam
>> > > > l
>> > > > index 0711f1834fbd..aaabe2196185 100644
>> > > > ---
>> > > > a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys
>> > > > .yam
>> > > > l
>> > > > +++
>> > > > b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys
>> > > > .yam
>> > > > l
>> > > > @@ -48,7 +48,9 @@ properties:
>> > > >             - const: syscon
>> > > >   
>> > > >         - items:
>> > > > -          - const: mediatek,mt8195-vdosys0
>> > > > +          - enum:
>> > > > +              - mediatek,mt8195-vdosys0
>> > > > +              - mediatek,mt8195-vdosys1
>> > > >             - const: mediatek,mt8195-mmsys
>> > > >             - const: syscon
>> > > >   
>> > > 
>> > > I think we had that several times already:
>> > > 
>> > 
>> > 
> https://lore.kernel.org/all/6bbe9527-ae48-30e0-fb45-519223a744d7@linaro.org/
>> > > 
>> > > We will something like this, but please check that this does not
>> > > give
>> > > any 
>> > > errors/warnings:
>> > > 
>> > > diff --git
>> > > a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.y
>> > > aml 
>> > > b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.y
>> > > aml
>> > > index eb451bec23d3d..8e9c4f4d7c389 100644
>> > > ---
>> > > a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.y
>> > > aml
>> > > +++
>> > > b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.y
>> > > aml
>> > > @@ -32,13 +32,22 @@ properties:
>> > >                 - mediatek,mt8183-mmsys
>> > >                 - mediatek,mt8186-mmsys
>> > >                 - mediatek,mt8192-mmsys
>> > > -              - mediatek,mt8195-mmsys
>> > >                 - mediatek,mt8365-mmsys
>> > >             - const: syscon
>> > >         - items:
>> > >             - const: mediatek,mt7623-mmsys
>> > >             - const: mediatek,mt2701-mmsys
>> > >             - const: syscon
>> > > +      - items:
>> > > +          - const: mediatek,mt8195-vdosys0
>> > > +          - const: syscon
>> > > +      - items:
>> > > +          - const: mediatek,mt8195-vdosys1
>> > > +          - const: syscon
>> > > +      - items:
>> > > +          - const: mediatek,mt8195-mmsys
>> > > +          - const: syscon
>> > > +      deprecated: true
>> > > 
>> > >     reg:
>> > >       maxItems: 1
>> > 
>> > Hi Matthias,
>> > 
>> > As the vdosys0 previous reviewed patch:
>> > 
>> > 
> https://urldefense.com/v3/__https://patchwork.kernel.org/project/linux-mediatek/patch/20220927152704.12018-2-jason-jh.lin@mediatek.com/__;!!CTRNKA9wMg0ARbw!zRdbIyyAsfqob2kapMAcKYATAguhEV0x0qE5cTOAcWUNhzeAbMHzZoos_2QzUCxS$
>> >  
>> > Should I modify the vdosys0 items format like your example?
>> > 
>> > Or should vdosys1 add items format like vdosys0's previous patch?
>> >      - items:
>> >          - const: mediatek,mt8195-vdosys1
>> >          - const: mediatek,mt8195-mmsys
>> >          - const: syscon
>> > 
>> 
>> No, vdosys1 must not have mediatek,mt8195-mmsys fallback.
>> 
>> Regards,
>> Matthias
>> 
> 
> I will fix it and add the following vdosys1 binding base on [1].
> 
>        - description: vdosys0 and vdosys1 are 2 display HW pipelines,
>                       so mt8195 binding should be deprecated.
>          deprecated: true
>          items:
>            - const: mediatek,mt8195-mmsys
>            - const: syscon
>        - items:
>            - const: mediatek,mt7623-mmsys
>            - const: mediatek,mt2701-mmsys
>            - const: syscon
>        - items:
>            - const: mediatek,mt8195-vdosys0
>            - const: mediatek,mt8195-mmsys
>            - const: syscon
>   +    - items:
>   +        - const: mediatek,mt8195-vdosys1
>   +        - const: syscon
> 

Looks good, thanks
Matthias

> [1]
> https://kernel.googlesource.com/pub/scm/linux/kernel/git/matthias.bgg/linux/+/b237efd47df7d25b78c306e90b97c5aa0ff4c4fc/Documentation/devicetree/bindings/arm/mediatek/mediatek%2Cmmsys.yaml
> 
> Regards,
> Nancy
> 
> 
>> > Regards,
>> > Jason-JH.Lin
>> > 
>> > 
>> > 
>> > ************* MEDIATEK Confidentiality Notice
>> >   ********************
>> > The information contained in this e-mail message (including any
>> > attachments) may be confidential, proprietary, privileged, or
>> > otherwise
>> > exempt from disclosure under applicable laws. It is intended to be
>> > conveyed only to the designated recipient(s). Any use,
>> > dissemination,
>> > distribution, printing, retaining or copying of this e-mail
>> > (including its
>> > attachments) by unintended recipient(s) is strictly prohibited and
>> > may
>> > be unlawful. If you are not an intended recipient of this e-mail,
>> > or believe
>> >   
>> > that you have received this e-mail in error, please notify the
>> > sender
>> > immediately (by replying to this e-mail), delete any and all copies
>> > of
>> > this e-mail (including any attachments) from your system, and do
>> > not
>> > disclose the content of this e-mail to any other person. Thank you!
>> 
>> 
> 
> ************* MEDIATEK Confidentiality Notice ********************
> The information contained in this e-mail message (including any
> attachments) may be confidential, proprietary, privileged, or otherwise
> exempt from disclosure under applicable laws. It is intended to be
> conveyed only to the designated recipient(s). Any use, dissemination,
> distribution, printing, retaining or copying of this e-mail (including its
> attachments) by unintended recipient(s) is strictly prohibited and may
> be unlawful. If you are not an intended recipient of this e-mail, or believe
> that you have received this e-mail in error, please notify the sender
> immediately (by replying to this e-mail), delete any and all copies of
> this e-mail (including any attachments) from your system, and do not
> disclose the content of this e-mail to any other person. Thank you!